Flavor symmetry for strong phases and determination of βs, ∆Γ in Bs → J/ψφ
نویسنده
چکیده
Studies of angular distributions and CP-violating observables in Bs → J/ψφ decays yield a space of parameters which can be considerably reduced if relative strong phases among different amplitudes are specified. We show that the relations between Bs → J/ψφ and B → J/ψK amplitudes given by flavor symmetry [actually U(3) rather than SU(3)] are likely to be quite reliable, and hence the use of strong phases from B → J/ψK in the analysis of Bs → J/ψφ is justified. Additional remarks are made about the potential advantage of using helicity angles, and about a way to measure a sizable CP-violating phase independent of strong phases.
منابع مشابه
arXiv:0808.3761 Flavor symmetry for strong phases and determination of βs, ∆Γ in Bs → J/ψφ
Studies of angular and time distributions and CP-violating observables in Bs → J/ψφ decays yield a space of parameters which can be considerably reduced if relative strong phases among different amplitudes are specified. We show that the relations between Bs → J/ψφ and B → J/ψK amplitudes given by flavor symmetry [actually U(3) rather than SU(3)] are likely to be quite reliable, and hence the u...
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